package com.itheima.service.impl;

import com.alibaba.dubbo.config.annotation.Service;
import com.github.pagehelper.Page;
import com.github.pagehelper.PageHelper;
import com.itheima.dao.PermissionDao;
import com.itheima.dao.RoleDao;
import com.itheima.dao.UserDao;

import com.itheima.entity.PageResult;
import com.itheima.entity.QueryPageBean;
import com.itheima.pojo.Permission;
import com.itheima.pojo.Role;
import com.itheima.pojo.User;

import com.itheima.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
import org.springframework.transaction.annotation.Transactional;

import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.concurrent.TimeoutException;

/**
 * 用户服务
 */
@Service(interfaceClass = UserService.class)
@Transactional
public class UserServiceImpl implements UserService {
    @Autowired
    private UserDao userDao;
    @Autowired
    private RoleDao roleDao;
    @Autowired
    private PermissionDao permissionDao;

    //根据用户名查询数据库获取用户信息和关联的角色信息，同时需要查询角色关联的权限信息
    public User findByUsername(String username) {
        User user = userDao.findByUsername(username);//查询用户基本信息，不包含用户的角色
        if(user == null){
            return null;
        }
        Integer userId = user.getId();
        //根据用户ID查询对应的角色
        Set<Role> roles = roleDao.findByUserId(userId);
        for (Role role : roles) {
            Integer roleId = role.getId();
            //根据角色ID查询关联的权限
            Set<Permission> permissions = permissionDao.findByRoleId(roleId);
            role.setPermissions(permissions);//让角色关联权限
        }
        user.setRoles(roles);//让用户关联角色
        return user;
    }


    @Override
    public PageResult findPage(QueryPageBean queryPageBean) {
        Integer currentPage = queryPageBean.getCurrentPage();
        Integer pageSize = queryPageBean.getPageSize();
        String queryString = queryPageBean.getQueryString();
        PageHelper.startPage(currentPage, pageSize);
        Page all = userDao.selectByCondition(queryString);
        List result = all.getResult();
        long total = all.getTotal();
        return new PageResult(total, result);
    }

    @Override
    public void add(User user, Integer[] roleIds) throws Exception {
        String username = user.getUsername();
        User byUsername = userDao.findByUsername(username);
        if (byUsername != null){
            throw new RuntimeException("用户名已存在");
        }
        userDao.add(user);
        Integer userId = user.getId();
        setUserAndRole(userId, roleIds);
    }

    public void setUserAndRole(Integer userId, Integer[] roleIds) {
        if (roleIds!=null&&roleIds.length>0) {
            for (Integer roleId : roleIds) {
                Map map = new HashMap<>();
                map.put("userId", userId);
                map.put("roleId", roleId);
                userDao.setUserAndRole(map);
            }
        }
    }

    @Override
    public User findById(Integer userId) {
        return userDao.findById(userId);
    }

    @Override
    public List<Integer> findRoleIdsByUserId(Integer userId) {
        return userDao.findRoleIdsByUserId(userId);
    }

    @Override
    public List<User> findAll() {
        return userDao.findAll();
    }

    @Override
    public void edit(User user, Integer[] roleIds) {
        userDao.edit(user);
        userDao.deleteAssocication(user.getId());
        setUserAndRole(user.getId(), roleIds);
    }

    @Override
    public void delete(Integer id) {
        userDao.deleteAssocication(id);
        userDao.deleteById(id);
    }

    @Override//验证用户是否存在
    public boolean findByUsernameAndTel(String username, String telephone) {
        User user = userDao.findByUsernameAndTel(username, telephone);
        if (user != null){
            return true;
        }
        return false;
    }

    @Override
    public void editPassword(String username, String password) {
        userDao.editPassword(username, password);
    }


}
